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Other Operating Income, net (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Other Income and Expenses [Abstract] |  |  |
Gain on sale of operating assets | $ 5 | $ 113 | $ 1
Frozen defined-benefit pension plan income |  |  | 1,611
Total other operating income, net | $ 5 | $ 113 | $ 1,612

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- Definition Defined Benefit Pension Plan Expense Income + References No definition available. + Details
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- Definition Amount of gain (loss) on sale or disposal of other assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 + Details
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- Definition The net amount of other operating income and expenses, the components of which are not separately disclosed on the income statement, from items that are associated with the entity's normal revenue producing operations. + References No definition available. + Details
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